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We explore a novel process in the early Universe in which thermalized photons are converted into gravitons in the presence of strong primordial magnetic fields. It is found that the frequency of generated gravitational waves (GWs) is…

宇宙学与河外天体物理 · 物理学 2020-11-19 Tomohiro Fujita , Kohei Kamada , Yuichiro Nakai

The conversion of gravitational to electromagnetic waves in the presence of background magnetic fields is known as the inverse Gertsenshtein effect, analogous to the Primakoff effect for axions. Rephrasing this conversion as a classical…

广义相对论与量子宇宙学 · 物理学 2025-07-23 Valerie Domcke , Camilo Garcia-Cely , Sung Mook Lee

We study graviton-photon conversion in the presence of stochastic magnetic fields. Assuming Gaussian magnetic fields that may possess nontrivial helicity, and unpolarized gravitational waves (GWs) as the initial state, we obtain expressions…

广义相对论与量子宇宙学 · 物理学 2025-11-07 Wataru Chiba , Ryusuke Jinno , Kimihiro Nomura

Graviton-photon conversions in a given external electric or magnetic field, known as the Gertsenshtein mechanism, are usually treated using the four-potential for photons. In terms of the electric and magnetic (EM) fields, however, proper…

广义相对论与量子宇宙学 · 物理学 2024-01-23 Jai-chan Hwang , Hyerim Noh

Gravitational waves (GWs) can convert into electromagnetic waves in the presence of a magnetic field via the Gertsenshtein-Zeldovich (GZ) effect. The characteristics of the magnetic field substantially affect this conversion probability.…

高能天体物理现象 · 物理学 2025-09-05 Wei Hong , Zhen-Zhao Tao , Peng He , Tong-Jie Zhang

Conversion of gravitational waves into electromagnetic radiation is discussed. The probability of transformations of gravitons into photons in presence of cosmological background magnetic field is calculated at the recombination epoch and…

广义相对论与量子宇宙学 · 物理学 2012-12-18 Alexander D. Dolgov , Damian Ejlli

Electromagnetic waves (EMWs) can be generated by gravitational waves (GWs) within a magnetic field via the Gertsenshtein effect. The conversion probability between GWs and EMWs can be enhanced by inhomogeneities in the electron density and…

宇宙学与河外天体物理 · 物理学 2025-06-09 Jian-Kang Li , Wei Hong , Tong-Jie Zhang

This work continues the research presented in the article [1], where we estimate the Gertsenshtein effect's influence on the long-wavelength part of relic gravitational wave spectrum. Here, the differential equation system for the…

广义相对论与量子宇宙学 · 物理学 2024-09-12 L. A. Panasenko , A. O. Chetverikov

High-frequency gravitational waves, particularly in the range $f \gtrsim 10^{10}~\mathrm{Hz}$, represent a compelling probe of physics beyond the Standard Model. Due to the absence of direct detection methods in this frequency regime,…

高能物理 - 唯象学 · 物理学 2026-04-03 Aman Gupta , Pratik Majumdar , Sourov Roy , Pratick Sarkar

High-frequency gravitational waves ($f \gtrsim 1$ MHz) may provide a unique signature for the existence of exotic physics. The lack of current and future gravitational-wave experiments sensitive at those frequencies leads to the need of…

高能物理 - 唯象学 · 物理学 2024-10-29 Alessandro Lella , Francesca Calore , Pierluca Carenza , Alessandro Mirizzi

It was recently demonstrated that the evolution of helical magnetic field in the primordial plasma at temperatures $T\gtrsim10$ MeV is affected by the phenomenon of chiral quantum anomaly in the electroweak model, leading to a possibility…

宇宙学与河外天体物理 · 物理学 2014-09-19 Oleksandr Tomalak , Yuri Shtanov

When a gravitational wave or a graviton travels through an electric or magnetic background, it could convert into a photon with some probability. In this paper, a dipole magnetic field is considered as this kind of background in both the…

广义相对论与量子宇宙学 · 物理学 2022-12-14 Chao-Jun Feng , Ao Guo , Zhong-Ming Xie , Miao Li

What is the highest energy at which gravitons can be observed? We address this question by studying graviton-to-photon conversion - the inverse-Gertsenshtein effect - in the magnetic field of the Milky Way. We find that above $\sim…

高能天体物理现象 · 物理学 2023-06-14 Sabir Ramazanov , Rome Samanta , Georg Trenkler , Federico R. Urban

We propose the gravitational analog of the chiroptical effect for the first time, demonstrating that gravitational waves (GWs) can induce a reversal of photon chirality through the exchange of angular momentum, namely the spin-2-gravitation…

广义相对论与量子宇宙学 · 物理学 2026-01-13 Haorong Wu , Xilong Fan

We discuss the conversion mechanism from scalar field to gravitational waves in magnetic background in $f(R)$ gravity minimal coupled to the Maxwell electrodynamics. Applying the conversion in early universe with primordial magnetic field…

广义相对论与量子宇宙学 · 物理学 2025-12-01 Salvatore Capozziello , Qingyu Gan

In this work, we analyze the implications of graviton to photon conversion in the presence of large scale magnetic fields. We consider the magnetic fields associated with galaxy clusters, filaments in the large scale structure, as well as…

广义相对论与量子宇宙学 · 物理学 2009-10-29 M. S. Pshirkov , D. Baskaran

High frequency gravitational waves are the subject of rapidly growing interest in the theoretical and experimental community. In this work we calculate the resonant conversion of gravitational waves into photons in the magnetospheres of…

高能物理 - 唯象学 · 物理学 2024-06-28 Jamie I. McDonald , Sebastian A. R. Ellis

Relic gravitational waves (GWs) can be produced by primordial magnetic fields. However, not much is known about the resulting GW amplitudes and their dependence on the details of the generation mechanism. Here we treat magnetic field…

宇宙学与河外天体物理 · 物理学 2021-04-23 Axel Brandenburg , Yutong He , Tina Kahniashvili , Matthias Rheinhardt , Jennifer Schober

We reinvestigate the gravitational waves (GWs) induced by charged particles in storage rings. There are two major components in such GWs. One is the gravitational synchrotron radiation (GSR), i.e., the direct emission by the bending of the…

广义相对论与量子宇宙学 · 物理学 2021-11-25 Pisin Chen

The suppression of relic gravitational waves due to their conversion into electromagnetic radiation in a cosmological magnetic field is studied. The coupled system of equations describing gravitational and electromagnetic wave propagation…

广义相对论与量子宇宙学 · 物理学 2023-12-27 A. D. Dolgov , L. A. Panasenko , V. A. Bochko
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